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Major redesign of function call handling.

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Drop call gates. Use function headers, dispatched like bytecodes.
Emit BC_FUNCF/BC_FUNCV bytecode at PC 0 for all Lua functions.
C functions and ASM fast functions get extra bytecodes.
Modify internal calling convention: new base in BASE (formerly in RA).
Can now use better C function wrapper semantics (dynamic on/off).
Prerequisite for call hooks with zero-overhead if disabled.
Prerequisite for compiling recursive calls.
Prerequisite for efficient 32/64 bit prototype guards.
This commit is contained in:
Mike Pall
2010-02-13 04:51:56 +01:00
parent 4f8d7be8ea
commit c93138b59e
34 changed files with 4410 additions and 4264 deletions
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13
src/lj_lib.h
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@@ -57,6 +57,19 @@ LJ_FUNC int lj_lib_checkopt(lua_State *L, int narg, int def, const char *lst);
#define lj_lib_checkfpu(L) UNUSED(L)
#endif
/* Push internal function on the stack. */
static LJ_AINLINE void lj_lib_pushcc(lua_State *L, lua_CFunction f,
int id, int n)
{
GCfunc *fn;
lua_pushcclosure(L, f, n);
fn = funcV(L->top-1);
fn->c.ffid = (uint8_t)id;
setmref(fn->c.pc, &G(L)->bc_cfunc_int);
}
#define lj_lib_pushcf(L, fn, id) (lj_lib_pushcc(L, (fn), (id), 0))
/* Library function declarations. Scanned by buildvm. */
#define LJLIB_CF(name) static int lj_cf_##name(lua_State *L)
#define LJLIB_ASM(name) static int lj_ffh_##name(lua_State *L)